| 摘要 |
The present invention provides a screwdriver bit set with identification functions. Each bit body in the set has an insertion end, an actuating end and a neck portion. An aluminum alloy identification ring includes a trepan boring for assembly onto the neck portion of the bit body. The aluminum alloy identification ring also has an outer ring surface protruding from the neck portion of the bit body. An anodized protective film is formed on the surface of the aluminum alloy identification ring. The protective film presents bright color and a corrosion-resistant property, helping to prevent discoloring and provide durable identification effects with improved applicability.
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